INFORMATION PROCESSING DEVICE AND PROGRAM

An information processing device includes an image acquisition unit and an image processing unit. The image processing unit generates a composite image including at least two display images as images based on the one or more acquired images acquired by the image acquisition unit and a boundary image displayed at least in a region between the at least two display images. The image processing unit sets a display mode of the boundary image according to predetermined feature amounts of the at least two display images included in the composite image.